“…Tango nuclei have only one bound subsystem and in samba nuclei two of the 2B subsystems are bound. 10 Be can be treated as a 3B ( 8 Be + n +n) or as a 4B problems, and there could be a molecular α:2n:α band [186]. Using QFS and inverse kinematics to study the reaction H( 6 He, ab) and H( 8 He, ab), where a and b stand for pn, pα and p-6 He, momentum distributions inside 6 He and 8 He were measured [187].…”